Hép mee.............aa

Các công thức đổi HTHT - QKĐ

S + has/have + not + V3/ed + for/since + time 

--> S + last + V2/ed 

--> The last time + S+ V2/ed + was + time 

--> It is / has been + time + since + S+ (last) + V2/ed 

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EX1:

1. cutted --> cut 

V1-2-3: cut - cut - cut

2. work --> worked

S + has/have + V3/ed (thì HTHT)

3. hasn't --> haven't

The children: những đứa trẻ --> S số nhiều

EX2:

1. The last time she called them was a year ago. (sau chữ them xem lại đề e)

2. She first met him 10 years ago.

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